All ports
Port1258/TCP
opennlPort
1258
Protocol
TCP
Category
Registered
Service
opennl
What is port 1258?
Port 1258/TCP is a Registered port, registered with IANA for specific applications. It is associated with the opennl service.
Open Network Library
Useful commands
nmapnmap -p 1258 -sV example.comnetcatnc -zv example.com 1258curlcurl -v http://example.com:1258/telnettelnet example.com 1258bash(echo > /dev/tcp/example.com/1258) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1258/tcpDeny
sudo ufw deny 1258/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 1258 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 1258 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1258/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1258" dir=in action=allow protocol=TCP localport=1258Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 1258/TCP?
Port 1258/TCP is associated with the opennl service. Open Network Library
Is it safe to expose port 1258 to the Internet?
It depends on the service and configuration. Port 1258 (opennl) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 1258 is open?
You can use nmap: `nmap -p 1258 -sV example.com`, netcat: `nc -zv example.com 1258`, or the bash command: `(echo > /dev/tcp/example.com/1258) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1258 on my firewall?
On Linux with UFW: `sudo ufw allow 1258/tcp` (open) or `sudo ufw deny 1258/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 1258 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1258" dir=in action=allow protocol=TCP localport=1258`.
What applications and services use port 1258?
Port 1258/TCP is used by the opennl service. Specific uses depend on the software and configuration. Check our related tools section for more information.